Temperature

Compensation

Bias

+

±

Regulated Supply

Reference

Gate

Drive

OCP

VCC

OUT

GND

2.5 to 38 V

R1

C2

(Optional)

C1

Hall Element

9

DRV5023

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SLIS151G – MAY 2014 – REVISED SEPTEMBER 2016

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7 Detailed Description

7.1 Overview

The DRV5023 device is a chopper-stabilized Hall sensor with a digital output for magnetic sensing applications.

The DRV5023 device can be powered with a supply voltage between 2.5 and 38 V, and will survive –22 V

reverse-battery conditions. The DRV5023 device does not operate when –22 to 2.4 V is applied to the VCC pin

(with respect to GND pin). In addition, the device can withstand supply voltages up to 40 V for transient

durations.

The field polarity is defined as follows: a south pole near the marked side of the package is a positive magnetic

field. A north pole near the marked side of the package is a negative magnetic field.

The output state is dependent on the magnetic field perpendicular to the package. A strong south pole near the

marked side of the package causes the output to pull low (operate point, BOP), and a weak south pole causes

the output to release (release point, BRP). Hysteresis is included in between the operate point and the release

point therefore magnetic-field noise does not accidentally trip the output.

An external pullup resistor is required on the OUT pin. The OUT pin can be pulled up to VCC, or to a different

voltage supply. This allows for easier interfacing with controller circuits.

7.2 Functional Block Diagram